Hydroponic gardening tray



FIG. 1 is a top plan view of a hydroponic gardening tray showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an end elevational view taken from the right of FIG. 2;

FIG. 4 is an end elevational view taken from the left of FIG. 2; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a hydroponic gardening tray, as shown and described. 